com.abubusoft.kripton.android.livedata

Class PagedLiveData<T>

java.lang.Object

android.arch.lifecycle.LiveData<T>

android.arch.lifecycle.MutableLiveData<T>

com.abubusoft.kripton.android.livedata.KriptonLiveData<T>

com.abubusoft.kripton.android.livedata.PagedLiveData<T>

Type Parameters:

T - the generic type

All Implemented Interfaces:

PageRequest

public class PagedLiveData<T>
extends KriptonLiveData<T>
implements PageRequest

The paged version of KriptonLiveData. A paged live data allows to move in the dataset with three parameters:

• page: current page.
• pageSize: is the number of elements retrieved from datasource. It is also used to define iteraction with
• offset: it is an alternative to page as navigation system. It rapresents the distance from the first row. If you mix offset and nextPage, the behaviour will be strange (but not wrong). Just remember that nextPage and previousPage work with pages and not with offset.

Author:

Francesco Benincasa (info@abubusoft.com)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	PagedLiveData.PageRequestBuilder This builder allows you to manipulate page request object, changing some its attributes and invoke an unique update to live date.

Constructor Summary

Constructors

Constructor and Description
PagedLiveData(PageRequest pageRequest, KriptonPagedLiveDataHandlerImpl<T> backed)

Method Summary

Modifier and Type	Method and Description
PagedLiveData.PageRequestBuilder	createPageRequestBuilder() Allows to create a builder for a page request.
void	firstPage() Set the navigation to the first page.
int	getOffset() Set the current offset from start of dataset.
int	getPage() Current page
int	getPageSize() Page size used to navigate
void	nextPage() Navigates to next page.
void	previousPage() Navigates to previous page.
void	setOffset(int offset) Navigates to the offset.
void	setPage(int page) Navigates to the page.
void	setPageSize(int pageSize) Set page size

Methods inherited from class com.abubusoft.kripton.android.livedata.KriptonLiveData

updateValue

Methods inherited from class android.arch.lifecycle.MutableLiveData

postValue, setValue

Methods inherited from class android.arch.lifecycle.LiveData

getValue, hasActiveObservers, hasObservers, observe, observeForever, onActive, onInactive, removeObserver, removeObservers

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PagedLiveData

public PagedLiveData(PageRequest pageRequest,
                     KriptonPagedLiveDataHandlerImpl<T> backed)

Method Detail

createPageRequestBuilder

public PagedLiveData.PageRequestBuilder createPageRequestBuilder()

Allows to create a builder for a page request. This builder is usefully when you need to modify different parameter of page request and you want to make only a page request.

Returns:

getPage

public int getPage()

Description copied from interface: PageRequest

Current page

Specified by:

getPage in interface PageRequest

Returns:

Current page

getPageSize

public int getPageSize()

Description copied from interface: PageRequest

Page size used to navigate

Specified by:

getPageSize in interface PageRequest

Returns:

Page size used to navigate

setPage

public void setPage(int page)

Description copied from interface: PageRequest

Navigates to the page. This method is an alternative to offset.

Specified by:

setPage in interface PageRequest

nextPage

public void nextPage()

Description copied from interface: PageRequest

Navigates to next page.

Specified by:

nextPage in interface PageRequest

setOffset

public void setOffset(int offset)

Description copied from interface: PageRequest

Navigates to the offset. This method is an alternative to page.

Specified by:

setOffset in interface PageRequest

previousPage

public void previousPage()

Description copied from interface: PageRequest

Navigates to previous page.

Specified by:

previousPage in interface PageRequest

firstPage

public void firstPage()

Description copied from interface: PageRequest

Set the navigation to the first page.

Specified by:

firstPage in interface PageRequest

getOffset

public int getOffset()

Description copied from interface: PageRequest

Set the current offset from start of dataset.

Specified by:

getOffset in interface PageRequest

Returns:

setPageSize

public void setPageSize(int pageSize)

Description copied from interface: PageRequest

Set page size

Specified by:

setPageSize in interface PageRequest